Explain why 7 x 11 x 13 + 13 and 7 x 6 x 5 x 4x3x2x1 + 5 are composite numbers
Answers
Answered by
17
Answer:
7 x 11x 13+13 is composite
taking 13 as common we get :-
=13(7 x 11+1)
=13 x 78
=13x13x3x2
as the number has more than 2 factors hence it is composite
Similarly we can prove the other number
Similar questions